<template>
  <view>
    <view class="search-box">
      <uni-search-bar  @input="input" :radius="100" cancelButton="none"></uni-search-bar>
    </view>
    <view class="sugg-list"  v-if="searchResults.length!==0">
      <view class="sugg-item" v-for="(item,i) in searchResults" :key="i" @click="gotoDeatail(item)">
        <view class="goods-name"> 
          {{item.goods_name}}
        </view>
<uni-icons type="arrowright" size="16"></uni-icons>  
      </view>
    </view>
    <view class="history-box" v-else>
      <view class="history-title">
        <text>搜素历史</text>
        <uni-icons type="trash" size="17" @click="clean"></uni-icons>  
      </view>
      <view class="history-list">
        <uni-tag :text="item" v-for="(item,i) in histories" :key="i" customStyle="margin-top:5px;margin-right:5px" @click="gotoGoodsList(item)"></uni-tag>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        timer:null,
        kw:'',
        searchResults:[],
        historyList:[]
      };
    },
    onLoad() {
    this.historyList= JSON.parse(uni.getStorageSync('kw')||'[]') 
    },
    methods:{
      gotoGoodsList(kw){
        uni.navigateTo({
          url:'/subpkg/goods_list/goods_list?query='+kw
        })
      },
      clean(){
        this.historyList=[]
        uni.setStorageSync('kw','[]')
      },
      gotoDeatail(item){
        uni.navigateTo({
          url:'/subpkg/goods_detail/goods_detail?goods_id='+item.goods_id
        })
      },
      input(e){
        clearTimeout(this.timer)
       this.timer= setTimeout(()=>{
this.kw=e
this.getSearchList()
        },500)
        
      },
     async getSearchList(){
        if(this.kw.length===0){
          this.searchResults=[]
          return
        }
       const {data:res}=await uni.$http.get('/api/public/v1/goods/qsearch',{query:this.kw})
       if(res.meta.status!==200) return uni.$showMsg()
       this.searchResults=res.message
       this.saveSearchHistory()
      },
      saveSearchHistory(){
        // this.historyList.push(this.kw)
        const set =new Set(this.historyList)
        set.delete(this.kw)
        set.add(this.kw)
        this.historyList=Array.from(set)
        uni.setStorageSync('kw',JSON.stringify(this.historyList))
      }
    },
    computed:{
      histories(){
        return [...this.historyList].reverse()
      }
    }
  }
</script>

<style lang="scss">
.search-box{
  position: sticky;
  top: 0;
  z-index: 999;
}
.sugg-list{
  padding: 0 5px;
  .sugg-item{
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    padding: 13px 0;
    border-bottom: 1px solid #efefef;
    .goods-name{
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
  }
}
.history-box{
  padding: 0 5px;
  .history-title{
    display: flex;
    justify-content: space-between;
    height: 40px;
    align-items: center;
    font-size: 13px;
    border-bottom:1px solid #efefef;
    .history-list{
      display: flex;
      flex-wrap: wrap;
      .uni-tag{
        margin-top: 5px;
        margin-right: 5px;
      }
    }
  }
}
</style>
